Chromosome Location Contributing to Ozone Tolerance in Wheat

Plants
Alsayed M MashaheetDavid S Marshall

Abstract

Breeding wheat for higher grain yield can contribute to global food security and sustainable production on less land. Tropospheric ozone can injure wheat plants and subsequently reduce grain yield. Identification of ozone tolerance in the wheat genome can assist plant breeders in developing new sources of tolerant germplasm. Our objective was to use the 'Chinese Spring' monosomic lines to screen for ozone response and identify the chromosomic locations contributing to ozone tolerance based on foliar injury. Two methodologies, Continuous Stirred Tank Reactors and Outdoor Plant Environment Chambers, were used to expose wheat monosomic lines to varying concentrations and durations of ozone. Each wheat monosomic line in 'Chinese Spring' has a missing chromosome in each of the wheat subgenomes (A, B, and D). In both methodologies, we found significant and repeatable data to identify chromosome 7A as a major contributor to tolerance to ozone injury in 'Chinese Spring'. In every experiment, the absence of chromosome 7A resulted in significant injury to wheat due to ozone. This was not the case when any other chromosome was missing.

References

Feb 5, 2010·The Plant Journal : for Cell and Molecular Biology·Triin VahisaluHannes Kollist
Dec 22, 2014·Environmental Pollution·Michael Frei
Feb 28, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Amy L BurtonPerry B Cregan
Oct 16, 2016·The Plant Journal : for Cell and Molecular Biology·Elizabeth A Ainsworth
Apr 1, 2018·Global Change Biology·Gina MillsRita Van Dingenen
Aug 8, 2018·Global Change Biology·Gina MillsMadhoolika Agrawal
Aug 18, 2018·Science·UNKNOWN International Wheat Genome Sequencing Consortium (IWGSC)Cristobal Uauy

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Citations

Oct 20, 2020·Current Opinion in Environmental Science & Health·Costas J Saitanis, Evgenios Agathokleous

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Software Mentioned

SAS

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